Kettle



Feb. .16 1926.`

A. PQ KAY KETTLE Filed Nov. 19. 1925 latented Feb. 16, i926.

ARTHUR PERCY KAY, OF AUCKLAND, NEW' ZEALAND.

.K y Knrrtn.

Application led November To all 'whom t may concern.'

Be it known that ARTHUR Prine/Y KAY, citizen of the Dominion of NewZealand, re siding at Auckland, in the Provincial District otl Auckland,in the Dominion of New Zealand, have invented certain new and usefulimprovements in Kettles, ot which the following is a specification.

rlhis invention relates to kettles and other water heating utensils, ofthe type provided with an upwardly recessed, stepped or pocketed bottom,or with a false bottom or plate, between which and the bottom proper,water passes, 'for the purpose ot enabling water to be quickly heated.

` from side to side 'of the kettle or utensil, a

circular metal plate having a. diameter slightly less than the interiordiameter ot the body of the kettle being secured on top of said groovesor corrueations. The tact that this disc or plate is or smaller diameterthan the bottom ot' the kettle, leaves the ends of the grooves orcorrugations open to the vinterior oi' the kettle, with the result thatwater placed in the body of the kettle is permitt-ed to circulatethrough the passages provided beneath the disc, by the grooves orcorrugations, thereby forming the bottom ot the kettle into a miniaturetubular boiler in which the water is separated into a number of smallstreams which can be rapidly heated, and which give a vigorouscirculation to the main body of water in the kettle.

These tubes are preferably oval in cross section so as to increase theirrelative exvternal surface which is presented to the tire or otherheating element over those oit circular form.

in the case of kettles heated by electric means, the heating elementscan be positioned around the water tubes or corrugations or lin circularrings located underneath the water tubes or corrugations.

The invention will be more particularly described with the aid of theaccompanying drawing, wherein Figure l is a vertical section of -akettle provided with a corrugated bottom,

Serial I-To. 70,165.

Figure 2 is a horizontal section on line 2-2 of Figure l,

rigore 2l is a vertical section taken at right angles to that shown inFigure l.

The sides l and bottom 2 ot' the kettle are preferably stamped orpressed from a single sheet oft metal, while the said bottom 2 also hasstamped therein a number of deep narrow grooves or corrugations 3extending from side to side or" the kettle.

The grooves or corrugations 3 are tapered towards their ends tonallow Oitheir being stamped into the metal of the bottom 2 without tracturingthe metal.

The bottom 2 otl the kettle is concaved or recessed upwards in order toprovide that the grooves or corrugations 3 formed therein will be abovethe level of the lower edges of the sides, the weight of the kettlebeing` supported on the latter.

The top et of the kettle is of any desired shape or design and isprovided with a handle 5, which can it' desired be insulated, and aspout G, and is secured to the upper edges ot the kettle sides by meansot a convenient joint 7.

A disc l0 ot slightly smaller diameter than the interior diameter ot thebody of the kettle, is fastened on top ot the bottom 2 to close the topsot the grooves or corrugations 3 except at the ends o' the latter whichopen into the interior space of the kettle. lhe grooves or corrugations3 are thus formed into water tubes through which water from the body otthe kettle is adapted to circulate in closeproXimity to the flame or hotgases arising from the heating appliance, with the result that suchwater is rapidly heated and a considerable saving ot Afuel effected.

instead ot 'forming the disc 10 of slightly smaller diameter than thediameter of the interior oi` the kettle body said disc l0 can be toi-medto cover the whole ot the bottom 2, and have small holes i'ormedtherethrough to provide communication between the ends ot' the groovesor corrugations 3 and the interior ot the kettle.

I declare that what l claim and desire to obtain by Letters Patent ofthe United States ot America is l, A kettle, comprising, a bottom andsides in one piece, the bottom having an upwardly dished portion, thedished portion being provided with parullel corrugations havinguplWardlyturned tapered ends and extending substantially from edge toedge of the dished portion, and a disk ol' slightly less diameter thanthe length ofthe longest oorrugation7 the disk being centrallypositioned on the eorrugations inside of the kettle so as to leave theupturned ends of the corrugations open. Y

2. A kettle, co1nprising,a bottom and sides l0 in one piece, the bottonihaving an upwardly dished portion, the dished portion being providedwith parallel corrugations having upwardly turned tapered ends andextendr ing substantially from edge to edge of the dished portion, and adisk of slightlyv less diameter than the length of the longest oorArugation, the disk being centrally positioned on the corrugat-ionsinside of the kettle so as to leave the upturned ends of thecorrugationsopen, the lower edges of the corrugations being in aCoininon plane Which is above the plane of the lower edge ofthe kettlesides.

Signed at- Auekland, in the VProvincial District of Auckland, in theDominion of New Zealand, this tenth day of Gctober,

ARTHUR PERGY KAY,

